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About Our Foundation

Since its inception in 2000, the Greater Modesto Tree Foundation, Inc. has been dedicated to the continued development and protection of the rural and urban forests in the greater Modesto area.

Our rural and urban forests boast a vast and beautiful variety of trees and other vegetation that support a healthy urban ecosystem. The Greater Modesto Tree Foundation’s primary goal is to encourage and facilitate one of the most notable urban forests in the region. Our membership and programs are focused on helping to develop and expand rural and urban forests in Stanislaus County. To help us achieve our vision, we invite all to get involved and become a part of our efforts toward a healthy and vibrant forest community.

Protecting Modesto's trees today is a promise that future generations will share in the pleasure and beauty of the trees of tomorrow.

Our Vision

A large, robust urban and rural forest providing benefits to the residents and visitors to each of the communities in Stanislaus County.

Our Mission

The mission of the Greater Modesto Tree Foundation is to:

  • To bring together the members of our community to advocate for and support the planting, preservation and maintenance of trees in our urban and rural forests.
  • To promote public education leading toward greater enhancement of the urban forest and an increased understanding of the value and benefits of trees to our communities.
  • To raise and distribute funds in support of tree programs benefiting our community.

Benefits of Trees

Trees provide many benefits to the communities that have established a robust urban forest. A recent study performed in Modesto by by E. Gregory McPherson and other researchers from the Western Center for Urban Forest Research and Education at UC Davis revealed that Modesto’s urban forest returned $1.89 in economic benefits for every dollar spent. In the year of the study, the net benefit from Modesto’s urban forest was estimated to total more than $2 million. More importantly, the trees in the forest provide a number of direct benefits.

Take the simple quiz below to see how many benefits you can name.

10 Questions About Trees

Roll your cursor over the question to view the answer.

  1. How many publicly owned trees make up the Modesto urban forest?
  2. The most recent estimate indicated there are in excess of 115,000 publicly owned (park and street) trees in Modesto.
  3. In total, how many trees (public and private) are there in Modesto?
  4. Modesto has in excess of 500,000 trees in total. As we discuss tree benefits, keep this total in mind. Each of these trees add to the quality of life in Modesto.
  5. Trees improve air quality by removing air pollutants (primarily ozone, particulate matter and nitrogen oxides). How much air pollutants does a mature tree remove in a year?
  6. A recent study in Modesto calculated that the average street tree removes almost 4 pounds of air pollutants (ozone and nitrous oxides) per year. Across the 500,000 trees in Modesto, this may total as much as 1,790,000 pounds of pollutants that do not contribute to our significant smog problem. In addition, these trees remove particulate matter from the air.
  7. Trees also remove carbon dioxide from the air. How much carbon dioxide is removed from the air each year by a mature tree?
  8. The same study indicated that each trees net uptake of carbon dioxide is 329 pounds per year. Again, this may total 164,500,000 pounds for all the trees in Modesto.
  9. Trees provide shade. Shade reduces air temperature. How much temperature reduction can we expect when moving from full sun to full shade?
  10. Several studies have proven that the air temperature can be reduced from 5 to 9 degrees Fahrenheit by moving into the shade of a tree.
  11. Shade can also result in reduced energy usage. What impact can a full shade have on the energy usage of a Modesto home?
  12. The reduced outside temperature has proven to reduce energy consumption by an average of $103 per household per year.
  13. Shaded streets can also allow for deferred street maintenance (slurry seal, etc.). How long can the maintenance be deferred?
  14. Studies have shown that a shaded street can defer slurry seal maintenance from the normal 10 year cycle for a street in full sun to a 20 25 year cycle in a fully shaded street.
  15. Trees have proven to increase property values. How much can values be increased by adding ample tree resources to a property?
  16. Research has shown that buyers are willing to spend 3% to 7% more for properties with ample tree resources versus few or no trees.
  17. How much ground water runoff can be prevented by a mature tree?
  18. Storm water runoff has been reduced from 2% to 7% in studies testing the impact of trees. These runoff reductions, in turn, can reduce the need for capital improvements (such as water runoff retaining basins).
  19. What other social or economic benefits of trees can you name?
  20. The following are some additional benefits of trees:
    • Jobs (Tree Maintenance, Nurseries, etc.)
    • Habitat for Wildlife
    • Recreation Source (Parks, Picnics, Hunting, etc.)
    • Sense of Tranquility and Well-being (Noise Reduction, Wind Break, Shade, etc.)
    • Scenic Beauty
    • Improved Commercial Performance


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